I noticed my Macan with the optional sports exhaust started to sound real good at about 6000 miles. Before that, very underwhelming! I’ve heard of this phenomenon happening with exhausts before but have never experienced it myself until now, and now I’m a believer.

Does the GT3 stock exhaust have the same... um... feature?

Here’s hoping!

 

First you need to put 6,000 miles in a 991 GT3. The side muffler packing material will deteriorate with time and the exhaust tone will get less quiet (the stock system with valves closed is nowhere close to loud, too boring).
Why wait 6000 miles? delete the side mufflers.


Center muffler doesn't have any packing fiberglass material, so it will sound the same.

 

No, the stock exhaust does not sound good. Just get an aftermarket bypass.

 

It will become a little louder. Better is subjective but I did notice at some miles it did get noticeably louder. I didn't wait and installed an RSS center delete. Because the RSS has a crossover at the tips is still sounds very Porsche but less raspy and the shifts sound/feel more like a medium sized balloon popping. I wasn't sure I liked it so tried the sharkwerks. That exhaust sounds much more Porsche but louder than the stock breadbox exhaust just louder and more Porsche pure.

Exhaust note is almost more personal than choosing a color if you ask me. There's no right or wrong. You just need to listen to different set ups in person. Not online listening to a YouTube video.

 

nope....it actually gets worse. Need a centermuffler bypass at a very minimum lol

 

Hey there!

In our opinion, an aftermarket Exhaust is a must-have!
If you have any questions about our Exhaust Center Section, please don't hesitate to contact us at - 1.714.432.1582 or email Sales@gmgracing.com
gmgracing.com

https://shop.gmgracing.com/collectio...center-section

 

Got the Fabspeed side bypass valved pipes. Nt and day! Do itt. Oem Vs Aftermarket

 

^^ I think the OP was asking about the stock Porsche exhaust...

 

It does get better with time....over time you realize it sucks and put a bypass on, then it gets better

 

Get a Sharkwerks and call it a day. Not too loud cruising around. You can actually have conversations while driving. And it sounds insane when you are on it. Angry as hell!

 

Exactly true! Then and only then.....

 

Hi Chris!

The most popular upgrade would be to swap out the center muffler with a bypass. It allows you to retain the valves and gets the sound just right that is not too loud, and here is the one that we make. We have them in stock ready to ship for the 991.2 models so please email us at sales@bbiautosport.com or give us a call at (714)843-0200 if you have any more questions!

BBi Autosport Porsche 997 & 991 GT3 / GT3RS StreetCup Center Section Exhaust




[font="Arial"]Main Pipes Merged in the Middle to Function as an X-pipe











Internal Bypass Opening






Installed on 991.1 GT3 RS





















991.1 GT3 RS Exhaust Sound Clip

991.2 GT3 Sound Clip



- jerry@bbiautosport.com

 

It gets better with time if the mufflers fall off.

 

Mine seemed to get louder and coarser after 5000 miles or so.
Still taking the sides off..

 

I agree with Rob. Sharkwerks sounded great on my .1RS and it’s an easy, low risk mod.